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This keto alfredo sauce is the real deal! Rich, cheesy, and creamy, it comes together in just about 10 minutes. Toss with palmini for a “That’s really keto?!” dinner the whole family will love, just like mine does!

Pasta with keto alfredo sauce on a white plate with a fork

What Makes This Recipe So Good

  • Ready in just 10 minutes, it’s the perfect base for a low carb dinner on those nights when you want something quick, easy, and satisfying.
  • You can store this alfredo sauce in the refrigerator up to 6 days, which means it’s great for meal prepping! Use a glass jar with a lid for maximum freshness.
  • This recipe is so good, you won’t even know it’s keto. Seriously, even my kids love it!

Key Ingredients

Heavy Cream – Are your favorite soups and sauces velvety smooth? You can thank heavy cream for that. Because of its fat content, heavy cream is curdle-resistant, so it won’t clump or chunk at high heats. Trust me, no one wants that.

Cream Cheese – High fat, low carb, and low protein – the keto dream! It’s a must for rich, creamy sauce.

Parmesan – Name something that doesn’t taste better once you add Parmesan cheese. Oh, wait, that’s im-pasta-ble. It’s buttery, salty, and makes this sauce thick and cheesy. If you really want to elevate your alfredo, use a fresh Parmigiano Reggiano.

How to Make It

In a medium saucepan, melt the butter and cook the garlic until it’s fragrant. Add the heavy cream and cream cheese, then slowly stir in the Parmesan cheese until it’s well incorporated and thick. Finish up with a little salt and pepper to taste!

4-photo graphic that shows the process of making keto alfredo sauce in a silver saucepan

Chef’s Tips

  • Garlic burns easily, so keep a close eye on it. Add the heavy cream as soon as the garlic is fragrant.
  • Avoid cream cheese clumps by bringing the cream cheese to room temperature before making your sauce. Clumps happen when the cream cheese is too cold and the mixture is too hot!
  • High heat can make the parmesan stringy instead of smooth, so take the pan off the heat when you stir in the cheese.
  • A side of keto green beans complements this alfredo sauce perfectly! My favorite keto green bean recipe comes from our sister site, Easy Healthy Recipes.
Two white plates and a silver saucepan full of palmini noodles with keto alfredo sauce

More Amazing Keto Recipes

Recipe By: Cheryl Malik
4.95 from 17 votes

Keto Alfredo Sauce

Prep 5 minutes
Cook 10 minutes
Total 15 minutes
Rich, cheesy, and creamy keto alfredo sauce that comes together in about 10 minutes for a meal the whole family will love.
6

Ingredients

  • ¼ cup butter
  • 3 cloves garlic minced
  • 1 ½ cups heavy cream
  • 4 ounces cream cheese see Notes
  • 1 cup grated parmesan
  • ½ teaspoon salt
  • ground pepper

Instructions

  • Melt butter in a medium saucepan. Cook garlic until fragrant, about 2 minutes.
    Melted butter in a stainless steel saucepan
  • Add heavy cream and cream cheese.
    Heavy cream and melted cream cheese in stainless steel saucepan on white background
  • Slowly add Parmesan cheese, stirring constantly until well incorporated and sauce thickens, 5 to 7 minutes. Stir in salt and pepper.
    Melted cream cheese, heavy cream, and parmesan cheese in a stainless steel saucepan
  • Any cream cheese will work, but I recommend Philadelphia brand because of the carb count. For this recipe, Philadelphia cream cheese will net you 4 grams of carbs, while the same amount of Kroger brand cream cheese nets 8 grams
  • Keep it Keto: I like to use 3 cans of palmini noodles (or just 2 cans when I want it really saucy) to get that great pasta texture with only 2g net carbs per serving. Shirataki noodles, zoodles (zucchini noodles), and kelp noodles are great alternatives, too! For a side dish, check out the keto green bean recipe from our sister site, Easy Healthy Recipes.
 
Recipe yields approximately 6 servings. Actual number of servings will depend on your preferred portion sizes.
Nutritional values shown are general guidelines and reflect information for 1 serving using the ingredients listed. Actual macros may vary slightly depending on specific brands and types of ingredients used.
To determine the weight of one serving, prepare the recipe as instructed. Weigh the finished recipe, then divide the weight of the finished recipe (not including the weight of the container the food is in) by 6. Result will be the weight of one serving.

Approximate Information for One Serving

Serving Size: 1servingCalories: 414calProtein: 9gFat: 41gSaturated Fat: 25gTrans Fat: 1gCholesterol: 137mgSodium: 612mgPotassium: 74mgTotal Carbs: 4gFiber: 1gSugar: 1gNet Carbs: 3gVitamin A: 1255IUVitamin C: 1mgCalcium: 242mgIron: 1mg
Nutrition Disclaimers
Number of total servings shown is approximate. Actual number of servings will depend on your preferred portion sizes.
Nutritional values shown are general guidelines and reflect information for 1 serving using the ingredients listed, not including any optional ingredients. Actual macros may vary slightly depending on specific brands and types of ingredients used.
To determine the weight of one serving, prepare the recipe as instructed. Weigh the finished recipe, then divide the weight of the finished recipe (not including the weight of the container the food is in) by the desired number of servings. Result will be the weight of one serving.

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26 Comments

  1. I thought it tasted really good. The only issue I had was that it ended up REALLY thick. My friend also made it and had the same issue. Any suggestions? Very good recipe and I will definitely make it again!4 stars

  2. I thought it was too simple but it turned out amazing! Added a dash of dried basil and nutmeg. Maybe a 1/4 cup of sour cream. Probably didnt change profile much. Super quick and easy. Took longer to make the sides than the star of the meal.5 stars

  3. First time making my own alfredo sauce. This was easy and oh so full of flavor. I put this over strips of chicken breasts over a bed of fine chopped and steamed broccoli. My family loved it. Thank you for sharing.5 stars

  4. This was amazing, I added 2 rotisserie chickens,( shredded the breast meat, wow that sounds horrible!) Didn’t miss the pasta! Thank you, loved it!!

  5. This was delicious!! The whole family loved it! What would you say the serving size is for the nutrition information? Thanks!!

      1. This was delish, and a hot with the whole family 🙂. Wondering as a measurement (? Half cup) is one serving.
        Thanks!5 stars

  6. Luxurious creamy alfredo that won the family over! I served with Zoodles and broiled salmon and everyone raved! Absolutely delish!5 stars

  7. So yummy!!! I added lemon juice, lemon pepper seasoning, and cayenne pepper and my bf said it’s the best alfredo sauce he’s ever had!5 stars

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